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JIS X 8341-7 (2011) (English) : Guidelines for 
older persons and persons with disabilities — 
Information and communications equipment^ 
software and services — Part 7: Accessibility 
settings 



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JAPANESE 
INDUSTRIAL 
STANDARD 



Translated and Published by 
Japanese Standards Association 



JIS X 8341-7 - 

(ISO/IEC 24786 : 2009) 
(JBMIA/AIST/JSA) 

Guidelines for older persons and 
persons with disabilities- 
Information and communications 
equipment, software and services- 
Part 7: Accessibility settings 



ICS 35.240.20 

Reference number : JIS X 8341-7 . 2011 (E) 



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Date of Establishment: 2011-08-22 

Date of Public Notice in Official Gazette: 2011-08-22 

Investigated by: Japanese Industrial Standards Committee 

Standards Board 

Technical Committee on Information Technology 



JIS X 8341-7:2011, First English edition published in 2011-12 



Translated and published by: Japanese Standards Association 
4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN 

In the event of any doubts arising as to the contents, 
the original JIS is to be the final authority. 

© ISA 2011 

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or 
utilized in any form or by any means, electronic or mechanical, including photocopying and 
microfihTi, without permission in writing from the publisher. 

Printed in Japan 

AT 



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X 8341-7 : 2011 (ISO/IEC 24786 : 2009) 
Contents 

Page 

Introduction • - 1 

1 Scope ■ •••• ■ 1 

2 Conformance ••••• • " • --- • 1 

3 Normative references • 2 

4 Terms and definitions •- • 2 

5 Requirements and recommendations 6 

5.1 Accessibility setting mode 6 

5.1.1 Accessibility setting mode before login • 6 

5.1.2 Contents and interface of the accessibility setting mode 6 

5.1.3 Access procedure 7 

5.2 Items of accessibility setting • - - 8 

5.2.1 StickyKeys™ ■ • 8 

5.2.2 SlowKeys™ 10 

5.2.3 BounceKeys™ ■ 11 

5.2.4 FilterKeys™ ■... 13 

5.2.5 MouseKeys™ 13 

5.2.6 RepeatKeys^^ ■ - 16 

5.2.7 ToggleKeys™ 16 

5.2.8 SoundSentry™ -. • - 16 

5.2.9 ShowSounds^^^ - 17 

5.2.10 Time Out • 17 

5.2.11 On-screen keyboard "•••• 17 

5.2.12 Voice operation • • 18 

5.2.13 Visual emphasis 18 

5.2.14 Screen reader • 19 

5.2.15 Auditory feedback -• • 20 

5.2.16 Visual feedback 20 

5.3 Shortcuts to access the accessibility features 20 



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Foreword 

This translation has been made based on the original Japanese Industrial Standard 
established by the Minister of Economy, Trade and Industry through deliberations 
at the Japanese Industrial Standards Committee according to the proposal for 
establishment of Japanese Industrial Standard submitted by Japan Business Machine 
and Information System Industries Association (JBMIA)/National Institute of Advanced 
Industrial Science and Technology (AIST)/Japanese Standards Association (JSA) with 
a draft being attached, based on the provision of Article 12 Clause 1 of the Industrial 
Standardization Law. 

This JIS document is protected by the Copyright Law. 

Attention is drawn to the possibility that some parts of this Standard may conflict 
with a patent right, application for a patent after opening to the public or utility 
model right which have technical properties. The relevant Minister and the Japanese 
Industrial Standards Committee are not responsible for identifying the patent right, 
application for a patent after opening to the public or utility model right which have 
the said technical properties. 

JIS X 8341 series consists of the following 7 parts under the general title ""Guidelines 
for older persons and persons with disabilities — Information and communications 
equipment, software and services'^: 

Part 1: Common Guidelines 

Part 2: Information processing equipment 

Part 3: Web content 

Part 4: Telecommunications equipment 

Part 5: Office equipment 

Part 6: Guidance on software accessibility (to be published) 

Part 7: Accessibility settings 



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JAPANESE INDUSTRIAL STANDARD JIS X 8341-7 : 2011 

(ISO/IEC 24786 : 2009) 

Guidelines for older persons and 

persons with disabilities — 

Information and communications 

equipment^ software and services — 

Part 7: Accessibility settings 



Introduction 

This Japanese Industrial Standard has been prepared based on the first edition of 
ISO/IEC 24786 published in 2009 without modifying the technical contents. 

The portions with dotted underlines are the matters not given in the correspond- 
ing International Standard. 

1 Scope 

This Standard specifies requirements and recommendations for making accessibil- 
ity settings accessible. It provides guidance on specific accessibility settings. It specifies 
how to access and operate the accessibility setting mode^ and how to directly activate 
specific accessibility features. 

This Standard applies to all operating system user interfaces on computers, but can 
also be applied to other types of information/communication technolog;v% where appro- 
priate. 

This Standard does not apply to the user interface before the operating system is 
loaded and active. 

NOTE 1 The International Standard corresponding to this Standard and the 
symbol of degree of correspondence are as follows: 

ISO/IEC 24786:2009 hiformation technology — User interfaces — Acces- 
sible user interface for accessibility settings (IDT) 

In addition, symbols which denote the degree of correspondence in 
the contents between the relevant International Standard and JIS are 
IDT (identical), MOD (modified), and NEQ (not equivalent) according 
to ISO/IEC Guide 21-1. 

NOTE 2 In this Standard^ requirements or recommendations for the user inter- 
face of computer is sometimes referred to simply as requirements or 
recommendations for the computer. 

2 Conformance 

The computer is conformant to JIS X 8341-7 Level 2 if it meets all requirements 
and recommendations of clause 5. 

The computer is conformant to JIS X 8341-7 Level 1 if it meets all requirements 
of clause 5, but does not meet all recommendations of clause 5. 



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3 Normative references 

The following standards contain provisions which, through reference in this text, 
constitute provisions of this Standard. For standards with the year indication, only 
the editions of the indicated year shall be applied and any revisions (including amend- 
ments) made thereafter shall not be applied. 

JIS X 0001 : 1994 Glossary of terms used in information processing — Fundamental 
terms 

NOTE : Corresponding International Standard: ISO/IEC 2382-1:1993 Informa- 
tion technology — Vocabulary — Part 1: Fundamental terms (MOD) 

ISO 9241-171:2008 Ergonomics of humun- system interaction — Part 171: Guidance 
on software accessibility 

4 Terms and definitions 

For the purpose of this Standard, the terms and definitions given in JIS X 0001 : 
1994 and ISO 9241-171 :2008 together with the following apply. 

NOTE : The terms StickyKeys™, SlowKeys™, BounceKeys™, FilterKeys™, 
MouseKeys™, RepeatKeys™, ToggieKeys™, SoundSentry™, and 
ShowSounds^"^ are all trademarks of the University of Wisconsin. How- 
ever, use of the terms is permitted freely, without royalty or license, to 
describe user interface features that have the functionality and 
behaviour described in this Standard. 

4.1 accessibility feature 

feature (etc.) that is specifically designed to increase the usability of products for those 
experiencing disabilities (see ISO 9241-171:2008) 

4.2 accessibility setting 

setting to make the user interface more accessible for people with disabilities 

Example : A setting is provided to turn large text or screen magnification ON 
for people with low vision. 

4.3 accessibility setting mode 

mode where the user adjusts accessibility settings 

NOTE : A user can access almost all the accessibility settings and adjustments 
for the accessibility features through this mode. 

4*4 auditory feedback 

function that allows individuals to hear whether their operations (e.g. key input) have 
been accepted by the computer 

NOTE : Auditory feedback includes beep sound with key input, alarm sound, etc. 

4*5 BounceKeys™ 

function that only accepts a single keystroke at a time from a key 



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NOTE : BounceKeys'^^'^ is designed for users with tremor that causes them to in- 
advertently strike a key extra times when pressing or releasing the key. 
Once a key is released it will not accept another stroke of the same key 
until a (user-settable) period of time has passed. BounceKeys^^ has no 
effect on how quickly a person can type a different key (see ISO 9241- 
171:2008, Annex E). 

4.6 computer 

functional unit that can perform substantial computations, including numerous arith- 
metic operations and logic operations, without human intervention (see JIS X 
0001:1994, 01.03,03) 

4.7 FilterKeys™ 

BounceKeys'^^ and SlowKeys™ features combined as a package 

NOTE : The term FilterKeys™ is sometimes used for the BounceKeys"^^'^ and 
Slow^Keys^^ features packaged together. It is acceptable to make these 
two features mutually exclusive. However, they can also both be ac- 
tive at the same time (though SlowKeys^^^^ will dominate) (see ISO 9241- 
171:2008, Annex E). 

4.8 MouseKeys™ 

function that allows the user to use the keys on the numeric keypad to control the mouse 
cursor on screen and to operate the mouse buttons 

NOTE : MouseKeys'^^^ is designed for users who are physically unable to use a 
mouse accurately (or at all) (see ISO 9241-171:2008, Annex E). 

4.9 on-screen keyboard 

software that presents a keyboard on the display screen that is operable by a point- 
ing device and that generates input that is identical to that which comes from a physical 
keyboard 

NOTE : In ISO 9241-171 :2008, 3.19, on-screen keyboard is given as an example 
of a keyboard emulator. 

4.10 RepeatKeys™ 

facility to control auto-repeat, repeat onset and repeat rate of keys 

NOTE 1 RepeatKeys™ is designed to allow use of computers by people who can- 
not move quickly enough when pressing keys to keep them from auto- 
repeating. The facilities to adjust repeat onset, repeat rate and to turn 
auto-repeat off are usually included as part of most keyboard system 
settings. If these functions are not included, RepeatKeys^^-^^ provides 
them. RepeatKeys'^^'' also ensures that the repeat delay and repeat 
interval can be set long enough for users who do not have quick response 
(if the standard maximum value for either of the regular key repeat 
settings is not long enough) (see ISO 9241-171:2008, Annex E). 



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NOTE 2 The system settings are a panel or window where the user adjusts OS 
settings. The name of the system settings differs depending on the OS. 
Common names for this function include control panel and system pref- 
erences. 

4.11 screen reader 

function that reads the characters and other information on the screen aloud to the 
user to allow access to the information on screen without viewing the screen 

4.12 shortcut 

operation which immediately invokes an action without displaying intermediate infor- 
mation (such as menus) or requiring pointer movement or any other user activity 

4.13 ShowSounds™ 

user-configurable system, flag that is readable by application software and is intended 
to inform ShowSounds™-aware applications that all information conveyed audibly 
should also be conveyed visually 

NOTE : ShowSounds™ is a feature for users who cannot clearly hear speech or 
cannot distinguish between sounds from a computer due to hearing 
impairment, a noisy environment, or an environment where sound is 
not allowed, such as a library or classroom. For example, captions can 
be shown for recorded or synthesized speech, and a message or icon can 
be displayed when a sound is used to indicate that new mail has arrived. 
However, captions cannot be provided for speech output where the 
speech is reading information that is already visually presented on the 
screen (e.g. screen, readers) (see ISO 9241-171 :2008, Annex E). 

4.14 SlowKeys™ 

function that causes the keyboard to ignore all keys that are bumped or pressed briefly 

NOTE : SlowKeys™ is designed for users who have extra, uncontrolled move- 
ments that cause them to strike surrounding keys unintentionally when 
typing. Keystrokes are accepted only if keys are held down for a user- 
specifiable period of time (see ISO 9241-171 : 2008, Annex E). 

4.15 SonndSentry™ 

feature providing a visual signal to indicate when the computer is generating a sound 

Example : screen flash, caption bar flash. 

NOTE : SoundSentry™ is a feature for individuals who cannot hear system 
sounds (due to hearing impairment, a noisy environment, or an envi- 
ronment where sound is not allowed, such as a library or classroom). 
SoundSentry^"^^ works by monitoring the system sound hardware and 
providing a user-selectable indication whenever sound activity is 
detected. Note that this feature cannot usually discriminate between 
different sounds, identify the sources of sounds, or provide a useful 
alternative for speech output or information encoded in sounds. 
Applications can support the ShowSounds^^^ feature to provide the user 
with a useful alternative to information conveyed using sound. 



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SoundSentry''^^^ is just a system-level fallback for applications that do not 
support ShowSounds™ (see ISO 9241-171:2008, Annex E). 

4.16 Sticky Keys™ 

function that allows users to press key combinations (e.g. Ctrl-Alt-Delete) sequentially 
rather than having to hold them all down together 

NOTE : Sticky Key s'^^'^ is designed for people who cannot use both hands, or w^ho 
use a dowel or stick to type. Sticky Key s"^"^"^^ works with those keys de- 
fined as "modifier" keys, such as the Shift, Alt and Ctrl keys. Usually 
the Sticky Key s^'^"^ status is shown on-screen at the user's option (see ISO 
9241-171 : 2008, Annex E). 

4.17 Time Out 

feature that turns the accessibility features off automatically after an adjustable time 
when no keyboard or mouse activity occurs 

NOTE : Time Out is intended to be used on public or shared computers, such 
as those in libraries, bookstores, etc., where a user might leave the 
computer with, an access feature turned on, thus potentially confusing 
the next user or leading people to think the computer w^as broken (see 
ISO 9241-171 : 2008, Annex E). 

4.18 ToggleKeys™ 

feature alerting the user when a toggle key has been locked or unlocked 

NOTE : ToggieKeys™ is a feature for users who cannot see the visual keyboard 
status indicators for locking (toggle) keys such as CapsLock, ScrollLock, 
NumLock, etc. ToggieKeys '^'^^ provides an auditory signal, such as a high 
beep, to alert the user that a toggle key such as the CapsLock has been 
locked, and a separate signal, such as a low beep, to alert the user that 
a toggle key has been unlocked (see ISO 9241-171 :2008, Annex E). 

4.19 visual emphasis 

function that allows users to change the visual aspects to improve visibility 

NOTE : Visual emphasis includes adjustment of character size, screen magni- 
fication, contrast, luminance, color balance, color tone inverse, grada- 
tion, etc. 

4.20 visual feedback 

function that allows users to know visually w^hether their operations (e.g. key input) 
have been accepted by the computer 

NOTE : Visual feedback includes the key indicators when Sticky Key s^^ is en- 
abled, visual indication when an on-screen key is pressed, etc. 

4.21 voice operation 

function that allows users to operate a computer with voice commands through a 
microphone (e.g. the voice command "Switch to Mail" activates the email application) 



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NOTE : The voice commands usually follow an activation ke^^word (e.g. 
''Computer!") in order to be distinguished from other speech that is not 
intended as a voice command. 

5 Requirements and recommendations 

5.1 Accessibility setting mode 

5.1.1 Accessibility setting mode before login 

The user should be able to access the accessibility setting mode from the login mode. 
In this case, the accessibility setting mode may not contain all of the setting items but 
it should contain at least the setting items to turn on and off the following functions: 

— StickyKeys™ 

— SlowKeys'^^^ 

— BounceKeys'^^'' 

— on-screen keyboard 

— voice operation 

— visual emphasis, and 

— screen reader 

NOTE : This is a recommendation to provide the user access to the accessibil- 
ity setting mode from the login screen. After login, the computer pro- 
vides the accessibility setting features as described in 5.1.2. 

5.1.2 Contents and interface of the accessibility setting mode 

The accessibility setting mode provides the access to the setting items described in 

5.2 except shortcuts. 

The followings are requirements and recommendations for the user interface of the 
accessibility setting mode. 

a) Keyboard access to all setting items shall be provided. 

b) The keyboard access shall not require a user to press two or more keys simulta- 
neously. 

c) Pointing device access to all setting items shall be provided. 

d) Text size in the setting dialogs shall be twice or more of the usual size. 

e) Descriptions of setting items in the natural language shall be presented on screen. 

f) Notification of the results of operations shall be provided to the user in both au- 
ditory and visual manner. 

g) If two different access-feature options are settable at the same point in time, the 
keys to activate them should not be close to one another. 

h) Voice operation access to all setting items should be provided. 

i) Natural language should be used for voice operation and screen reader. 



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j) Text on the screen should be sans-serif letters. 

k) Luminance of text on the screen should be at least five times higher than back- 
ground. 

1) Pictograms should be presented on screen for description of setting items. 

NOTE 1 In d), "usual size" means the screen-displayed character size in sys- 
tem default setting. 

NOTE 2 In g), Keys A, S, and D are adjacent in QWERTY keyboard [keyboard 
of such a key layout that the first six letters (keys) appearing in the 
top-left alphabetical letter row of the keyboard, read left to right: 
Q-W-E-R-T-Y]. The keyboard access uses A, D, and G rather than A, 
S, and D, because some user might accidental!}^ hit an adjacent key 
in the A, S, D case. 

NOTE 3 In j), "Sans-serif letters" are typeface of which lines are uniform in 
thickness lengthwise, crosswise and diagonally and have no text deco- 
ration. 

5,1»3 Access procedure 

5.1.3.1 GUI operation 

The following is the requirement of GUI operation to access the accessibility set- 
ting mode. 

The system settings shall provide access to the accessibility setting mode. 

NOTE: See NOTE 2 to 4.10. 

5.1.3.2 Keyboard operation 

The foUow^ings are the requirements and recommendation of keyboard operation to 
access the accessibility setting mode. 

a) On systems that have an operating system-specific key for invoking commands, 
pressing this key together with "U" shall provide access to the accessibility set- 
ting mode. 

b) Operating systems should provide a mechanism for users to define a key sequence 
(not involving the operating system-specific key) as an alternative way to invoke 
the accessibility setting mode. 

c) Pressing Shift key 5 times shall allow the user to turn StickyKeys'^^^ on and off. 
The default behaviour for StickyKeys'^^' activation should be to show a dialog at 
activation. Whenever the StickyKeys^^^* feature dialog is open the user shall also 
have the option of opening the accessibility setting mode. 

d) Pressing Shift key for 8 s shall allow the user to turn BounceKeys™, SlowKeys™ 
or FilterKeys™ on and off. The default behaviour when pressing the Shift key 
for 8 s shall be to show an activation dialog box. Whenever the dialog is open the 
user shall also have the option of opening the accessibility options mode. 

e) Pressing the Help key for 5 s should provide access for a user to the accessibility 
setting mode. 



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NOTE 1 In a), Common names for the operating system-specific key for invoking 
commands include "Windows Logo" on Windows^' systems and ^'Com- 
mand" on Apple Macintosh^- systems. 

Note ^' "Windows" and "Apple Macintosh" are shown as an example 
of marketed products. This information is provided for the 
convenience of users of this Standard and does not make 
recommendation of the products. 

NOTE 2 In c) and d), the actions 'Tressing Shift key 5 times" and "Pressing 
Shift key for 8 s" are assigned to StickyKeys^^^^ and FilterKeys"^^' re- 
spectively by ISO 9241-171 : 2008. 

NOTE 3 In e), the Help key is not supported in all keyboards. If there is no 
Help key, substitute keys (Fl or Insert) are allow^ed to be used as Help 
key. 

5.1.3.3 Voice operation 

The recommended voice command to access the accessibility setting mode is: 

Saying "Help" should open the accessibility setting mode. 

NOTE : The word "Help" is allowed to be replaced with the natural language 
of each country. A voice command can be initiated by the user by start- 
ing the command with a keyword such as "Computer...". 

5.1.3.4 Pointing device operation 

The following is the recommendation for pointing device operation to access the ac- 
cessibility setting mode. 

If the pointing device has a sub-button, pressing and releasing the sub-button, and 
selecting "Help" from menu should open the accessibility setting mode. 

NOTE : The sub-button is such as the right button of mouse. 
5.2 Items of accessibility setting 

5.2.1 StickyKeys^^^ 

If the computer implements the StickyKej^s^^ feature, the following requirements 
and recommendations apply. 

a) The StickyKeys"^'^' feature shall be off by default. 

b) The computer shall provide the capability for a user to turn Sticky Keys™ on and 
off from the system settings. 

NOTE 1 See NOTE 2 to 4,10. 

c) Pressing the Shift key 5 times w^ith no intervening key presses or mouse clicks shall 
allow the user to turn StickyKeys^'^'' on or off. Before turning the feature on or 
off, the computer should (at the user's option) ask the user for confirmation. This 
dialog shall also provide the user with the option of opening the accessibility^ set- 
ting mode. 



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d) The user shall be able to disable (and enable again) the confirmation dialog that 
appears after pressing the Shift key 5 times. The confirmation dialog should be 
enabled by default. If disabled, StickyKeys'^^'^^ is enabled or disabled immediately 
after the Shift key is pressed 5 times. 

e) The user shall be able to disable (and enable again) the keyboard shortcut (press- 
ing the Shift key 5 times) for allowing the user to turn StickyKeys^'^^ on or off. It 
should be enabled by default. 

f) Saying "StickyKeys^-^^ ON" should allow the user to turn StickyKeys™ on. Say- 
ing "StickyKeys^'^^ OFF" should allow the user to turn StickyKeys™ off. 

NOTE 2 The words can be replaced with the natural language of each coun- 
try. A voice command can be initiated by the user by starting the com- 
mand with a keyword such as "Computer...". 

g) The computer should be able to provide visual feedback when StickyKeys ^^'^ is 
turned on or off. If such visual feedback is available, the user shall be able to 
disable (and enable again) the visual feedback. It should be enabled by default. 

NOTE 3 The visual feedback can include displaying a status indicator when 
StickyKeys'^'^ is enabled. 

h) The computer should be able to provide auditory feedback when StickyKeys "^^^ is 
turned on or off by keyboard shortcut. The user shall be able to disable (and enable 
again) the auditory feedback. It should be enabled by default. 

NOTE 4 The auditory feedback can include beeping, click sounds, etc. 

Example 1 A low-high tone is suggested when StickyKeys™ is turned on, and 
a high-low tone when StickyKeys ^'^^ is turned off (see ISO 9241-171 : 
2008, Annex E). 

i) Pressing a modifier key and another key simultaneously shall turn off Sticky Keys"^^^ 
The user shall be able to disable (and enable again) that pressing a modifier key 
and another key turns off StickyKeys^^''. It shall be enabled by default. 

NOTE 5 Modifier keys include (but are not limited to) Shift, Alt, Ctrl, Option, 
Command, Meta, Logo. 

j) When StickyKeys ^^ is enabled, pressing and releasing any modifier key once shall 
latch the key (as if key was continuously held down). The next (single) non-modifier 
key pressed (or the next pointing device button action) is modified by the latched 
'modifier' key(s) (as if all pressed down together). 

NOTE 6 Multiple modifier keys can be latched at the same time. 

k) The computer should be able to provide visual feedback when a key is latched. If 
such visual feedback is available, the user shall be able to disable (and enable again) 
the visual feedback. It should be enabled by default. 

NOTE 7 The visual feedback can include displaying the visual representations 
of pushed keys. 

1) The computer should be able to provide auditory feedback when a key is latched. 
The user shall be able to disable (and enable again) the auditory feedback. It should 
be enabled by default. 



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NOTE 8 The auditory feedback can include beeping, click sounds, etc. 

Example 2 A low-high tone is suggested when a key is latched (see ISO 9241- 
171:2008, Annex E). 

m) Pressing a non-modifier key (or pressing a pointing device button) when in "latched" 
mode shall modify the key and unlatch the modifier key. 

n) When Sticky Key s"^^^ is enabled, pressing any modifier key twice sequentially shall 
lock the key. All subsequent non-modifier keys pressed, pointing device actions, 
and any softw^are actions that are altered by modifier key state are modified by 
the locked modifier key(s). 

NOTE 9 Multiple modifier keys can be locked or latched simultaneously in any 
combination. 

o) The computer should be able to provide visual feedback when a key is locked or 
unlocked. If such visual feedback is available, the user shall be able to disable 
(and enable again) the visual feedback. It should be enabled by default. 

NOTE 10 The visual feedback can include displaying the visual representations 
of pushed keys. 

p) The computer should be able to provide auditory feedback when a key is locked 
or unlocked. The user shall be able to disable (and enable again) the auditory feed- 
back. It shall be enabled by default. 

NOTE 11 The auditory feedback can include beeping, click sounds, etc. 

Example 3 A high tone is suggested when a key is locked, and a low tone when 
it is unlocked (see ISO 9241-171 : 2008, Annex E). 

q) Pressing a modifier key once when in "locked'^ mode shall unlock it. 

5.2.2 SlowKeys™ 

If the computer implements the SlowKeys^^ feature, the following requirements and 
recommendations apply. 

a) The SlowKeys™ feature shall be off by default. 

b) The computer shall allow a user to turn SlowKeys"^^ on and off from the system 
settings. 

NOTE 1 See NOTE 2 to 4,10. 

c) Pressing the right Shift key for 8 s shall allow the user to turn SlowKeys™ on or 
off Before turning the feature on or off, the computer shall (at the user's option) 
ask the user for confirmation. This dialog shall also provide the user with the option 
of opening the accessibility setting mode. 

d) The user shall be able to disable (and enable again) the confirmation dialog that 
appears after pressing the right Shift key for 8 s. It shall be enabled by default. 
If disabled, SlowKeys^^ is enabled immediately after pressing the right Shift key 
for 8 s. 

e) The user shall be able to disable (and enable again) the keyboard shortcut (press- 
ing the right Shift key for 8 s) for allowing the user to turn SlowKeys™ on or off. 
It should be enabled by default. 



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f) Saying "SlowKeys'^-^^ ON" should allow the user to turn SlowKeys™ on. Saying 
"SlowKeys™ OFF" should allow the user to turn SlowKeys^^^ off. 

NOTE 2 The words can be replaced with the natural language of each coun- 
try. A voice command can be initiated by the user by starting the com- 
mand with a keyword such as "Computer...''. 

g) The computer should be able to provide visual feedback when SlowKeys^'^^ is turned 
on or off. The user shall be able to disable (and enable again) the visual feedback. 
It should be enabled by default. 

NOTE 3 The visual feedback can include displaying a status indicator when 
SlowKeys"^^^'^ is enabled. 

h) The computer should be able to provide auditory feedback when SlowKeys™ is 
turned on or off by keyboard shortcut. The user shall be able to disable (and enable 
again) the auditory feedback. It should be enabled by default. 

NOTE 4 The auditory feedback can include beeping, click sounds, etc. 

Example 1 For turning SlowKeys'^^' on by keyboard shortcut, ISO 9241-171 : 
2008, Annex E suggests a double beep after 5 s to cause any inad- 
vertent holding of the Shift key to be stopped; and a low-high tone 
after 8 s to indicate that SlowKeys™^ has been turned on. A high- 
low^ tone is suggested when SlowKeys^^^ is turned off by keyboard 
shortcut, 

i) SlowKeys™ shall be turned off when the computer reboots. 

NOTE 5 SlowKeys™ is off at boot time because it makes the keyboard look like 
it is broken. 

j) When Slow^Keys^^* is turned on, the keyboard shall not accept any keystrokes unless 
keys are held down for the SlowKeys^^""'^ acceptance time. 

k) Auditory feedback should be provided when a key is pressed first (at the onset of 
the SlowKeys'^^^ acceptance time), and when a key stroke is accepted (after the ac- 
ceptance time has elapsed). The user should be able to disable (and enable again) 
the auditory feedback. It should be enabled by default. 

NOTE 6 Auditory feedback can include beeping, click sounds, etc. 

Example 2 A high tone can alert the user when a key is pressed first, and a 
low tone can alert the user when the key stroke is accepted (see ISO 
9241-171 : 2008, Annex E). 

1) The computer shall provide the capability for a user to adjust the SlowKeys™ 
acceptance time in a minimum range of 0.5 s to 2.0 s, with a default value of 0.75 s. 

5o2.3 BounceKeys™ 

If the computer implements the BounceKeys'^^'' feature, the following requirements 
and recommendations apply. 

a) The BounceKeys^-^^ feature shall be off by default. 

b) The computer shall allow a user to turn BounceKeys^^^ on and off from the sys- 
tem settings. 



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NOTE 1 See NOTE 2 to 4.10. 



c) Pressing the right Shift key for 8 s shall allow the user to turn BounceKeys'^^'^ on 
or off. Before turning the feature on or off, the computer should (at the user's 
option) ask the user for confirmation. This dialog shall also provide the user with 
the option of opening the accessibility setting mode. 

NOTE 2 If SlowKeys^^^ and BounceKeys'^-^ shortcuts are both enabled they will 
both be activated by holding the Shift key down for 8 s. If both are acti- 
vated, Slow Keys™ will naturally dominate. If only the BounceKeys'^^ 
feature is desired, then the Slow^Keys^""^ shortcut is disabled in the 
system settings. 

d) The user shall be able to disable (and enable again) the confirmation dialog that 
appears after pressing the right Shift key for 8 s. It should be enabled by default. 
If disabled, BounceKeys™ is enabled immediately after pressing the right Shift 
key for 8 s. 

e) The user shall be able to disable (and enable again) the keyboard shortcut (press- 
ing the right Shift key for 8 s) for allowing the user to turn BounceKeys'^^ on or 
off It should be disabled by default, 

f) Saying "BounceKeys'^'^^ ON" should allow the user to turn BounceKeys'^'^^ on. Say- 
ing "BounceKeys^'^^ OFF" should allow the user to turn BounceKeys^^^ off 

NOTE 3 The words can be replaced with natural language of each country. A 
voice command can be initiated by the user by starting the command 
with a keyword such as "Computer...". 

g) The computer should be able to provide visual feedback when BounceKeys™ is 
turned on or off. If such visual feedback is available, the user shall be able to 
disable (and enable again) the visual feedback. It should be enabled by default. 

NOTE 4 The visual feedback can include displaying a status indicator when 
BounceKeys'^^ is enabled. 

h) The computer should be able to provide auditory feedback when BounceKeys'^^^ is 
turned on or off by keyboard shortcut. If such auditoiy feedback is available, the 
user shall be able to disable (and enable again) the auditory feedback. It should 
be enabled by default. 

NOTE 5 Auditory feedback can include beeping, click sounds, etc. 

Example : For turning BounceKeys™ on by keyboard shortcut, a double beep 
after 5 s can alert the user to a potentially inadvertent holding of the 
Shift key; and a low-high tone after 8 s to indicate that BounceKeys™ 
has been turned on. A high-low tone can alert the user when 
BounceKeys ^^ is turned off by a keyboard shortcut. 

i) If the user-specified debounce time is more than 0.35 s, BounceKeys'^'^^ shall be 
turned off when the computer reboots. 

NOTE 6 For long debounce times, BounceKeys™ is off at boot time because it 
makes the keyboard behave as if it is broken. 



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j) When BounceKeys™ is turned on, any additional stroke of the same key shall be 
ignored if the time between the keystrokes is less than the BounceKeys™ debounce 
time. 

NOTE 7 The user can still type as usual at full speed. Any rattling of keys 
will be ignored. To type two of the same letter in a row, the user simply 
waits briefly between key-presses (longer than the debounce setting 
time). 

k) The computer should be able to provide auditory feedback when a keystroke is 
ignored because of rapid repetition of the same key. If such auditory feedback is 
available, the u.ser shall be able to disable (and enable again) the auditory feed- 
back. It should be enabled by default. 

NOTE 8 A high tone can alert the user when a keystroke is ignored because 
of rapid repetition of the same key. 

1) The computer shall provide the capability for a user to adjust the BounceKeys™ 
delay time in a minimum range of 0.2 s to 1.0 s, with a default value of 0.5 s. 

5.2.4 FilterKeys™ 

If the computer implements the FilterKeys^^""^ feature, the following requirements 
and recommendations apply. 

FilterKeys™ shall be implemented as a combination of SlowKeys'^^^ and 
BounceKeys™. All requirements and recommendations, as defined for SlowKeys'^^'^ (see 
5,2,2) and BounceKeys™ (see 5.2.3), apply. 

5.2.5 MouseKeys™ 

If the computer implements the MouseKeys'^^^ feature, the following requirements 
and recommendations apply. 

NOTE 1 MouseKeys'^^'' only works with a computer that has a number pad. 
However, the computer might have a keyboard that allows for emu- 
lation of number pad keys by other keys or the connection of a sepa- 
rate keypad. 

a) The MouseKeys'^^'^ feature should be off by default. 

b) The computer shall allow a user to turn MouseKeys^^^ on and off from the system 
settings. 

NOTE 2 See NOTE 2 to 4.10. 

c) Pressing the key combination LeftShift-LeftAlt-NumLock should turn MouseKeys™ 
on and off (toggle). 

d) Pressing Alt 5 times should turn MouseKeys"^^^ on and off (toggle). 

e) The user should be able to disable (and enable again) the keyboard shortcut 
(LeftShift-LeftAlt-NumLock) for turning MouseKeys™ on and off. It should be en- 
abled by default. 

Saying "MouseKeys'^'^ ON" should allow the user to turn MouseKeys^'^'^ on. Say- 
ing "MouseKeys™ OFF'' should allow the user to turn MouseKeys™ off. 



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NOTE 3 The words can be replaced with natural language of each country. A 
voice command can be initiated by the user by starting the command 
with a keyword such as "Computer../'. 

g) When MouseKeys^^^'' is on, the NumLock key should switch the number pad back 
and forth between MouseKeys'^^* operation and one of the other two standard modes 
of number pad operation (number input or key navigation). 

h) The computer should allow a user to select whether MouseKeys'^^^ is active when 
NumLock is on or off. The initial setting should be that MouseKe3^s^^^ is active 
when NumLock is on. 

NOTE 4 When MouseKeys"^^'^ is active when NumLock is on, the NumLock key 
switches between mouse pointer navigation (MouseKeys^^^) and key 
navigation. Otherwise, the NumLock key switches between mouse 
pointer navigation (MouseKeys'^^^) and number input. 

i) The computer should be able to provide visual feedback when MouseKeys'^^^' is 
turned on or off The user shall be able to disable (and enable again) the visual 
feedback. It should be enabled by default. 

NOTE 5 The visual feedback can include displaying a status indicator when 
MouseKeys"^*^^^ is enabled, and displaying the visual representations of 
pushed mouse keys, etc. 

j) The computer should be able to provide auditory feedback when MouseKeys'^^'' is 
turned on or off by keyboard shortcut. If such auditory feedback is available, the 
user shall be able to disable (and enable again) the auditory feedback. It should 
be enabled by default. 

NOTE 6 Auditory feedback can include beeping, click sounds, etc. In ISO 
9241-171:2008, Annex E, a low-high tone can alert the user when 
MouseKeys™ is turned on, and a high-low tone when MouseKeys^^^ 
is turned off. 

k) When MouseKeys™ is on, the number pad keys in table 1 shall move the mouse 
pointer by one pixel, if the key is pressed and released; or repeatedly in increas- 
ing steps of pixels if the key is pressed and held down (repetition every 0.5 s in 
default setting). The direction of movement shall be as defined in table 1. 

Table 1 Mouse pointer movements in MouseKeys^'^ mode 



Number pad key 


Mouse pointer movement 


1 


down and to the left 


2 


down 


3 


down and to the right 


4 


to the left 


6 


to the right 


7 


up and to the left 


8 


up 


9 


up and to the right 



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1) If MouseKeys™ is on, and the Ctrl key is held down, any of the keys in table 1 
should cause the mouse pointer to jump by 20 pixels instead of one pixel, and by 
20 times the regular step-size when acceleration kicks in. 

m) If MouseKeys-^^* is on, and the Shift key is held down, any of the keys in table 1 
should cause the mouse pointer to move continuously without acceleration (by one 
pixel each time), no matter how long the movement key is held down. 

n) The computer shall allow a user to adjust the following parameters for holding down 
a number pad key: repeat rate (in s), acceleration rate, and top mouse pointer speed 
(maximum speed in number of pixels per step that is reached when holding down 
a key for a long time). 

o) When MouseKeys^^^ is on, the number pad keys in table 2 (if available on the 
number pad) should select the mouse buttons for operation, and the number pad 
keys in table 3 shall operate the mouse buttons, as defined in table 2 and table 3. 

Table 2 MouseKeys™ — Selecting the buttons to act upon 



Number pad key 


Mouse button selection 


/ 


select the left mouse button to be controlled with any key in 
table 3 


jj: 


* on systems with center mouse button: select the center 
mouse button to be controlled with any key in table 3 

• on systems with no center mouse button: select both left and 
right mouse buttons to be controlled with any key in table 3 


- 


select the right mouse button to be controlled with any key in 
table 3 



Table 3 MouseKeys^'^ — Actions to take with selected mouse button(s) 



Number pad key 


Action to take with selected mouse button(s) 


5 


click the selected mouse button(s) 


+ 


double-click the selected mouse button(s) 




lock down the selected mouse buttonfs) 





release all locked mouse buttons 



p) 



q) 



When MouseKeys'^'^'' is on and the number pad keys in table 2 have not been pushed 
yet, pressing the number pad key "5" should operate the left mouse button, and 
key combination of the number pad key *'5" and Ctrl or Tab should operate the 
right mouse button. 

The computer should be able to provide visual feedback about the mouse button(s) 
currently selected. If such visual feedback is available, the user shall be able to 
disable (and enable again) the visual feedback. It should be enabled by default. 

NOTE 7 The visual feedback can include displaying (a) visual representation(s) 
of the selected mouse button(s). 



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5.2.6 RepeatKeys™ 

If the computer implements the RepeatKeys^^'^ feature, the following requirements 
and recommendations apply. 

a) The RepeatKeys'^^^ feature should be off by default. 

b) The computer shall allow a user to turn RepeatKeys™ on and off from the sys- 
tem settings. 

NOTE : See NOTE 2 to 4.10. 

c) The computer shall allow a user to adjust the repeat onset delay, up to a maxi- 
mum value of at least 2 s. 

d) The computer shall allow a user to adjust the repeat interval, up to a maximum 
value of at least 2 s. 

5.2.7 ToggleKeys™ 

If the computer implements the ToggleKeys'^^^ feature, the following requirements 
and recommendations apply. 

a) The ToggieKeys^'^^ feature should be off by default. 

b) The computer shall allow a user to turn ToggleKeys™ on and off from the system 
settings. 

NOTE : See NOTE 2 to 4.10. 

c) When ToggleKeys'^^'^ is on, auditory feedback should be provided when any toggle 
key is locked or unlocked. 

Example : A high tone can alert the user when a toggle key is being locked, 
and a low tone can alert the user when the key is being unlocked 
(see ISO 9241-171 : 2008, Annex E). 

5.2.8 SoundSentry™ 

If the computer implements the SoundSentry^'^^ feature, the following requirements 
and recommendations apply. 

a) The SoundSentry^^ feature should be off by default. 

b) The computer shall allow a user to turn SoundSentry™ on and off from the sys- 
tem settings. 

NOTE 1 See NOTE 2 to 4.10. 

c) When SoundSentry^-^^ is on, visual feedback should be provided when the computer 
generates a sound. 

NOTE 2 ISO 9241-171:2008, Annex E lists the following common types of 
visual feedback: flash of on-screen icon, flash of full screen, flash of 
foreground window frame, flash of desktop. 

d) The computer shall allow a user to adjust the type of visual feedback. 



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5.2.9 ShowSounds™ 

If the computer implements the ShowSounds''^^^ feature, the following requirements 
and recommendations apply. 

a) The ShowSounds™ feature should be off by default. 

b) The computer shall allow a user to turn ShowSounds™ on and off from the sys- 
tem settings, 

NOTE : See NOTE 2 to 4.10. 

c) The computer shall allow applications to read the state of the ShowSounds''^^^ set- 
ting. 

5.2.10 Time Out 

If the computer implements the Time Out feature, the following requirements and 
recommendations apply. 

a) The Time Out feature should be off by default. 

b) The computer shall allow a user to turn Time Out on and off from the system 
settings. 

NOTE 1 See NOTE 2 to 4.10. 

c) When Time Out is on, the following access features shall be automatically turned 
off after a period of keyboard and mouse inactivity: StickyKeys^^^ SlowKeys"^^, 
BounceKeys™, FilterKeys™, MouseKeys™, RepeatKeys^-'S ToggleKeys™, 
SoundSentry™, and ShowSounds™. 

d) The computer shall allow a user to adjust the period of time before the access 
features are disabled, up to a maximum time of at least 30 minutes. The default 
value should be 10 minutes. 

NOTE 2 The Time Out feature is typically used on public and shared comput- 
ers. It does not notify the user when it turns off the access features 
since this would be annoying and confusing. 

5.2.11 On-screen keyboard 

If the computer has the function of an on-screen keyboard: 

a) The computer shall provide the capability for a user to enable and disable the on- 
screen keyboard. 

b) The computer should provide the capability for a user to enable and disable auto 
key scan. 

NOTE : The auto key scan is a function to provide automatically the candidate 
keys to be selected in the sequence of the key layout on-screen key- 
board. When using this function, the user is capable of getting the same 
result as pressing the target key by giving a signal (for example, press- 
ing down the button of the pointing device, etc.) when the key is pro- 
vided. This function is effective in the case where the user is unable 
to point out the position of the key intended to select on-screen key- 
board. 



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5.2.12 Voice operation 

If the computer has the function of voice operation, it shall provide the following 
settings. 

a) The computer shall provide the capability for a user to enable and disable voice 
operation. 

b) The computer shall provide the capability for a user to adjust the sensitivity of 
the microphone, 

c) The computer shall provide the capability for a user to select the voice command 
activation signal. 

NOTE: In c), possible voice command activation signals include a keyword (ex. 
"Computer"), user-defined shortcut key, etc. 

5.2.13 Visual emphasis 

If the computer has the function of visual emphasis: 

a) The computer shall provide the capability for a user to enable and disable screen 
magnification. 

b) The computer shall provide the capability for a user to adjust magnification fac- 
tor for screen magnification, 

c) The computer shall provide the capability for a user to select the variety of move- 
ments of screen with respect to the movement of pointing device. 

d) The computer shall provide the capability for a user to invert the color tone of 
screen. 

e) The computer shall provide the capability for a user to choose gray scale, high- 
contrast, or black-and-white screen. 

f) The computer shall provide the capability for a user to adjust the contrast of screen. 



to 



) Pressing "operating system-specific key for invoking commands" -Alt-Ctrl""^'" com- 
bination should enable and disable color tone inverse. 



h) Pressing "operating system-specific key for invoking commands" -Alt-"'^'" combina- 
tion should enable and disable screen magnification mode, 

i) Pressing "operating system-specific key for invoking commands" -Alt- "+" or "-" 
combination should cause screen magnification or reduction, respectively. 

j) The computer should provide the capability for a user to enable and disable ac- 
cepting shortcuts define in h) and i) for controlling screen magnification. 

k) Pressing "operating system-specific key for invoking commands" -Alt-Ctrl- *V' or 
"." combination should change contrast up or down, respectively. 

1) Pressing Alt-Shift-PrintScreen combination should enable and disable high-con- 
trast mode. 

m) The computer should provide the capability for a user to enable and disable ac- 
cepting shortcuts defined in k) and 1) for controlling contrast. 



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n) The computer should provide the capability for a user to select the combination 
of foreground color (ex. text color) and background color. 

o) Saying "Inverse ON/OFF" should enable and disable color inverse. 

p) Saying "Zoom ON/OFF" should enable and disable screen magnification mode. 

q) Saying "Zoom IN/OUT" should cause screen magnification/i:'eduction. 

r) Saying "Contrast ON/OFF" should enable and disable high-contrast mode. 

s) Saying "Contrast UP/DOWN" should adjust contrast up/down. 

NOTE 1 In c), variety of movements includes "scroll with pointer", "scroll only 
when the pointer is at end of screen/' etc. 

NOTE 2 Alt key is also called Option key. Common names for the operating 
system-specific key for invoking commands include "Windows Logo'' 
on Window^s systems and "Command" on Apple Macintosh systems. 
The names of the modifier keys are different depending on OS. 

NOTE 3 In g) to i), keys "^^=^ "+", "-" can be replaced by other keys. For ex- 
ample, "-h'' can be replaced by "^'\ "^'" can be replaced by "8", etc. 

NOTE 4 In 1), some keyboards have no PrintScreen key. 

NOTE 5 o) to s) are voice operation. The words can be replaced with the natural 
language of each country. A voice command can be initiated by the 
user by starting the command with a keyword such as "Computer...". 

5.2.14 Screen reader 

If the computer has the function of screen reader: 

a) The computer shall, provide the capability for a user to enable and disable screen 
reader. 

b) The computer shall provide the capability for a user to select the voice from a 
variety of voices. 

c) The computer shall provide the capability for a user to adjust the reading speed. 

d) Pressing "operating system-specific key"-F5 should enable and disable screen 
reader. 

e) The computer should provide the capability for a user to enable and disable ac- 
cepting shortcuts defined in d). 

f) Saying "Speech ON/OFF" should enable and disable the screen reader. 

NOTE 1 In h), the variety of voice includes male or female, high pitch or low^ 
pitch, etc. 

NOTE 2 In d), common names for the operating system- specific key for invok- 
ing commands include "Windows Logo'' on Windows systems and 
"Command" on Apple Macintosh systems. 

NOTE 3 f) is voice operation. The words are allowed to be replaced with the 
natural language of each country. A voice command can be initiated 



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by the user by starting the command with a keyword such as 
''Computer...". 

5.2.15 Auditory feedback 

If the computer has the function of auditory feedback: 

The computer shall provide the capability for a user to enable and disable auditory 
feedback. 

NOTE : The auditory feedback includes beep, click sound, etc. 

5.2.16 Visual feedback 

If the computer has the function of visual feedback: 

The computer shall provide the capability for a user to enable and disable visual 
feedback. 

5.3 Shortcuts to access the accessibility features 

The requirements for shortcuts to access the accessibility features are: 

a) If the accessibility feature is enabled by the shortcut, the computer shall notify 
the user in accessible manners that the accessibility feature is enabled. 

b) Application software shall not use the shortcuts defined in 5.1 and 5,2 for other 
purposes. 



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Errata for JIS (English edition) are printed in Standardization and Quality Control published 
monthly by the Japanese Standards Association, and also provided to subscribers of JIS 
(English edition) in Monthly Information. 

Errata will be provided upon request, please contact^ 

Standards Publishing Department, Japanese Standards Association 

4-1-24, Akasaka, Mmato-ku, Tokyo, 107-8440 JAPAN 

TEL. 03-3583-8002 FAX. 03'3583-0462 



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